[Ips-ssn-predictions] ISES Observed and Predicted Solar Indices
Regional Warning Centre
rwc at ips.gov.au
Fri May 1 19:25:03 EST 2009
IPS OBSERVED AND PREDICTED SOLAR INDICES FOR CYCLE 24
Prepared by IPS Radio and Space Services
Issued on May 01 2009
------------------------ SMOOTHED SUNSPOT NUMBER ---------------------------
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
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2000 113.0 116.9 120.0 120.9 119.0 118.8 119.8 118.7 116.3 114.5 112.7 112.1
2001 108.7 104.0 104.8 107.5 108.6 109.8 111.7 113.6 114.1 114.0 115.5 114.6
2002 113.5 114.6 113.3 110.5 108.8 106.2 102.7 98.7 94.6 90.5 85.3 82.1
2003 81.0 78.6 74.2 70.4 67.9 65.3 62.1 60.3 59.8 58.4 57.0 55.0
2004 52.1 49.4 47.2 45.6 43.9 41.7 40.2 39.3 37.6 35.9 35.4 35.2
2005 34.6 34.0 33.6 31.7 28.9 28.8 29.1 27.5 25.9 25.6 25.0 23.0
2006 20.8 18.7 17.4 17.1 17.4 16.4 15.3 15.6 15.6 14.2 12.7 12.1
2007 12.0 11.6 10.8 9.9 8.7 7.7 7.0 6.1 5.9 6.1 5.7 5.0
2008 4.2 3.6 3.3 3.3 3.5 3.2 2.7 2.6 2.2 1.8 1.9e 2.2e
2009 2.7e 3.4e 4.2e 5.1e 6.0e 7.1e 8.6e 10.3e 12.2e 14.4e 16.8 17.4
2010 20.2 22.6 25.2 29.6 34.5 39.8 44.2 48.8 53.8 59.4 64.5 68.8
2011 72.8 79.0 85.5 91.3 94.7 98.0 101.4 105.2 109.1 112.6 116.6 120.2
2012 122.4 125.4 127.1 127.9 129.2 130.9 131.8 133.9 134.7 134.7 133.9 131.8
2013 131.3 130.0 130.0 129.6 129.6 130.0 130.0 129.2 129.2 127.9 125.0 122.0
2014 119.3 116.6 113.5 110.0 107.7 105.7 104.1 102.2 100.1 97.4 94.3 89.3
2015 84.2 79.4 76.3 73.5 70.9 68.5 66.0 63.2 60.1 57.7 56.0 55.2
2016 54.3 53.1 51.4 49.1 46.4 43.6 41.3 39.4 37.5 35.3 33.0 30.9
2017 29.2 27.9 26.6 25.3 23.9 22.8 21.8 21.1 20.6 20.0 19.3 18.2
2018 17.3 16.8 16.5 15.9 14.9 14.2 14.1 14.3 14.3 14.0 14.0 14.2
============================================================================
----------------- EQUIVALENT 10.7 CM SOLAR RADIO FLUX ---------------------
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
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2000 162.2 166.2 169.4 170.3 168.3 168.1 169.2 168.0 165.6 163.7 161.9 161.2
2001 157.8 153.0 153.7 156.6 157.7 158.9 160.8 162.8 163.3 163.2 164.8 163.9
2002 162.7 163.9 162.5 159.6 157.9 155.2 151.6 147.6 143.4 139.3 134.1 131.0
2003 129.9 127.6 123.4 119.7 117.4 114.9 112.0 110.4 109.9 108.7 107.4 105.6
2004 103.2 100.8 98.9 97.6 96.2 94.4 93.3 92.5 91.2 89.9 89.5 89.4
2005 88.9 88.4 88.1 86.7 84.7 84.6 84.8 83.6 82.5 82.3 81.9 80.5
2006 79.0 77.6 76.8 76.7 76.8 76.2 75.5 75.7 75.7 74.8 73.9 73.6
2007 73.5 73.3 72.8 72.3 71.6 71.0 70.6 70.1 70.1 70.1 69.9 69.5
2008 69.1 68.8 68.6 68.7 68.7 68.6 68.4 68.3 68.1 67.9 67.9e 68.1e
2009 68.3e 68.7e 69.1e 69.6e 70.1e 70.7e 71.5e 72.5e 73.6e 74.9e 76.4 76.8
2010 78.6 80.2 82.0 85.2 88.8 92.9 96.5 100.3 104.6 109.6 114.2 118.2
2011 122.0 128.0 134.3 140.1 143.5 146.9 150.3 154.2 158.2 161.8 165.9 169.6
2012 171.8 174.9 176.6 177.4 178.8 180.5 181.4 183.5 184.3 184.3 183.5 181.4
2013 180.9 179.6 179.6 179.2 179.2 179.6 179.6 178.8 178.8 177.4 174.5 171.4
2014 168.6 165.9 162.7 159.1 156.8 154.7 153.1 151.1 149.0 146.3 143.1 138.1
2015 133.1 128.4 125.3 122.7 120.2 117.9 115.6 113.0 110.2 108.1 106.5 105.8
2016 105.1 104.0 102.5 100.6 98.3 96.0 94.1 92.6 91.1 89.4 87.7 86.1
2017 84.9 83.9 83.0 82.1 81.1 80.4 79.7 79.2 78.9 78.5 78.0 77.3
2018 76.8 76.4 76.2 75.9 75.2 74.8 74.8 74.9 74.9 74.7 74.7 74.8
============================================================================
This page is updated monthly using observed monthly sunspot numbers from
the Solar Influences Data Analysis Center (http://sidc.oma.be). Monthly
values are smoothed using a 13 monthly running filter (first and last half weighting)
and, where needed, combined with a predicted sunspot number curve for Cycle 24.
Values which have an "e" next to them are based partly on observed and partly on
predicted values. Values earlier in time to these are based entirely on
observed valued; values later in time are entirely predicted. Observed
data are adjusted slightly at times to use the SIDC final monthly values
which are available several months later - SIDC preliminary monthly values
are used up to this time.
All Solar Radio Flux values, including the "observed" values, are
obtained from sunspot numbers using a statistical conversion. They are
best described as equivalent solar flux values.
Prepared on behalf of the International Space Environment Service by
the Australian Space Forecast Centre, IPS Radio and Space Services. This
product is issued in the first few days of each month and is available
on the IPS Mailing List Server - http://listserver.ips.gov.au/mailman/listinfo/
For more information please contact the centre at asfc at ips.gov.au
PLEASE NOTE: The technique used to make these predictions was changed
for the predictions issued from early November 2003. The revised technique
is more appropriate to the situation of a declining solar cycle
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